We bought a lot of things.
We have bought a lot of things.
thing:事情；东西；事物；物；物件；物品；(个人的)用品，衣服；(某种)用具；任何东西；事实；形势；需要的东西；所有…的事物；生物；人，家伙。
例句
I?was?just?about?to?ask?you?the?same?thing.我刚才正要问你同一件事情。
2.The?whole?thing?was?a?complete?failure.整个事情彻底失败了。
3.He'd?like?more?time?to?think?things?over.他希望有更多的时间把情况考虑周详。